Solution : https://service.sap.com/sap/support/notes/1537719 (SAP Service marketplace login required)
Key words :
press change -> press assign holiday -> select epiphany, img -> global settings -> maintain calendar, create/change public holiday calendars, press change -> select poland, -> press assign publ, -> select holiday calendar, public holiday entries, public holiday valid, legal change, public holiday
Related Notes :
| 501670 | Public Holiday Calendar Creation/Change |